Electric Lift Pass Box LELP-T2014

Introduction

Electric offers an inner size of 680mm × 560mm, accommodating standard lab trays and medium‑sized equipment while maintaining a compact cleanroom. The system has a UV‑C germicidal lamp with a timer for optional microbial sterilization. It includes a tempered glass view window, allowing clear visibility and safety. Our electric lift pass box features infrared anti-pinch sensors that instantly halt lift operation upon detecting an obstruction.

This pass box is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Electric Lift Passing Box serve as sealed, motorized transfer chambers that block air convection and contamination. It plays a key role in pharmaceuticals, biotechnology, electronics and semiconductor manufacturing for efficient transfer of materials.

Specifications

Control Mode	One-button lifting / foot pedal lifting
Single Double/Side Control	Optional
Anti-Pinch Function	Infrared Sensor
Inner Size	680mm × 560mm
External Dimension	900mm × 100mm × 1200mm
Motor Power	25W
Power Supply	AC / 220

Features

Motorized Vertical Lift Doors

Interlocked Safety System

Dual-Stage Air Filtration Mode

Built‑in Intercom Communication

Foot-Pedal Lift Control

FAQs

1. What is the working principle of a dynamic Electric Lift Pass Box?

It employs a filtered airflow system where a built-in fan recirculates air vertically or horizontally through filters, maintaining Class 5 cleanliness inside the chamber. When the lift activates, purified air enters the compartment to dilute particles from transferred items and returns via a grille—creating a continuous clean-air cycle. Dual-stage filtration (pre-filter + H13/H14 ) removes both large and fine contaminants. Differential pressure monitoring ensures filter performance, while the air velocity is typically maintained. These continuous airflow dynamics keep the internal chamber sterile during the lifting process.

2. How do the interlock and alarm systems enhance safety and compliance?

The unit features electronic or electromagnetic interlock mechanisms that strictly prevent both doors from being opened simultaneously, effectively stopping cross-contamination. Fan operation locks the doors, and opening a door usually triggers an automatic UV shut-off and -visual indicators. In addition, digital or analog differential pressure gauges with alarm thresholds alert when pressure deviates, signalling filter clogging or malfunction. Audio-visual alarms can also be set to notify operators of extended door openings or blower issues, ensuring compliance with / protocols.

3. What maintenance and monitoring routines are required to ensure optimal performance?

Regular maintenance includes replacing the pre-filter every 1 to 6 months and the filter every 6 to12 months, depending on usage and particle load. After filter replacement, integrity tests using particle counters or / ports ensure there’s no leakage. Periodic airflow visualization (e.g., smoke test) confirms unidirectional flow. Daily or monthly differential pressure checks validate proper ventilation performance. UV-C lamps and internal chamber surfaces are cleaned weekly using approved disinfectants. Power components should be handled cautiously, with non-professional personnel restricted from circuit board access.

4. Can these units accommodate different cleanroom classifications and hazardous environments?

Yes—dynamic pass boxes are engineered to support transfers between various -grade environments (e.g., non-clean to 5 or C to B), acting as airtight airlocks. Some models are available in explosion-proof/-rated variants for use with combustible or hazardous materials. The airflow system is designed with variable-frequency drives to maintain consistent differential pressure, even if both doors are opened briefly. Configuration options include single-, double-, L-shaped, or multi-sided designs tailored for compartment-specific layout. Accessories like UV-C disinfection, intercom systems, and touchscreen panels increase flexibility across pharmaceutical, biotech, and industrial applications.

5. How do built-in monitoring features support regulatory compliance?

Equipped with differential pressure gauges (analog /digital), the pass box continually monitors filter loading and airflow performance—providing data for maintenance logs. / test ports allow onsite filter integrity testing, essential for validation. Door completion timers and UV-hour meters track usage cycles and UV exposure durations, enabling routine documentation. Control systems often include password-protected or touchscreen interfaces for secure adjustments. Together, these systems support full lifecycle documentation—DQ/IQ/OQ/PQ protocols—and help satisfy audit requirements under 14644, , US cGMP, and guidelines.